Schelde off Vlissingen, Netherlands 18 April 2017
Homeport Kingston-upon-Hull, England. Call sign GABB. Built as the XSV Explorer (A154)by Watercraft Marine/Vosper Thornycroft as an Example tender similar to the Archer-class P2000-type patrol and training vessel. Commissioned on 18 October 1985. Reclassified in 1994 when she was handed over to the British Royal Navy when the Royal Naval Auxiliary Service was disbanded and assigned as training vessel to the Yorkshire Universities Royal Navy Unit.
Displacement 54 tons and as dimensions 20,8 x 5,8 x 1,8 metres. Machinery consists of 2-873bhp Cat C18 ACERT diesels allowing a speed of 22 knots. Designed for a speed of 45 knots depending on the machinery with she is fitted out. Range 550 nautical miles. Crew numbers 12 (operational)-22 (training) persons. Armament 3 General purpose machineguns and if needed 1-2cm Oerlikon cannon.